Scott: 3 var
Persiphila: 3A
Farahbakhsh: 3 var
Type: IV
1870 Bagheri Issue - 4 Chahis deep blue, type IV, on thin paper, unused hinged, is genuine.
Scott: 3
Persiphila: 3
Farahbakhsh: 3
Type: III
1870 Bagheri Issue - 4 Chahis ligh greenish blue, type III, on white thin paper, unused hinged, is genuine.